Phân tử khối của natri nitrat là 85đvC . trong đó có 1 nguyên tử Na có nguyên tử khối là 23.một nguyên tử nito có khối lượng nguyên tử khối là 14 , số nguyên tử oxi trong phân tử là bao nhiêu

The p sub shell can hold up to 8 electrons in an atom. true or false?

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?